Auto-sensing Rear Light

BikeSpark Auto-sensing Rear Light revolutionizes the genre of bike rear lights with Vsenx, an innovative deceleration sensing algorithm (US Patent No.: 10427594 B2). Vsenx accurately detects braking and riding speed changes, and filters road surface noise and the noise of hard acceleration or standstill. It significantly improves the promptness and correctness of deceleration warning light. BikeSpark perfectly lifts the safety to a new level with deceleration brake warnings for cycling riding.

Perfect Balance Between Riding Safety and Battery Life

  • BikeSpark Auto On/Off by Motion Sensing Technology
  • BAfter charging the battery, simply press and hold the control button for 1.5 seconds to turn it on. You are good to go for weeks.
  • Never have to remember to turn off your rear light again! BikeSpark turns off automatically after 1 minute of inactivity, and turns on when motion is detected. The perfect balance of convenience, battery life and riding safety.
  • ith Strobe Flash Lighting Mode, BKS-G4R can last for 240 HRs on one charge.

Perfect Balance Between Riding Safety and Battery Life

  • Super bright SMD LEDs providing excellent visibility, up to 50 lm with low power consumption.
  • BikeSpark BKS-G4R Auto-sensing Rear Light for cargo carrier meets ISO 6742 and StVZO K.
  • A Z-Reflector provides added security and visibility for daytime and exceptionally dark nights.

Perfect Balance Between Riding Safety and Battery Life

  • Deceleration warning when braking detected.
  • BikeSpark’s Auto-Sensing Rear Lights detect bike deceleration with an innovative deceleration sensing algorithm, Vsenx(US Patent No.: 10427594 B2). Once deceleration is detected, BikeSpark increases the brightness to ultra bright for 2.5 seconds, alerting and improving the reaction time of the person in any vehicle traveling behind.

Perfect Balance Between Riding Safety and Battery Life

Using BikeSpark’s Auto-Sensing Rear Lights couldn’t be easier. There are only 3 steps and you are good to go for weeks.
  • Step1. Mount to your rear rack or carrier assembly with 50mm or 80mm bolt spacing.
  • Step 2. Press and hold until turn On/Off the light, and press to cycle through all modes.
  • Step 3. Snap-fit design to release and charge easil.